Although the united states was still rural in 1820, a. cities in the south grew faster than cities in the north. b. farmers wanted to become less dependent on cities. c. nonfarm labor was becoming more common. d. professionals such as doctors and lawyers rarely practiced in cities.

C. Nonfarm labor was becoming more common.

Explanation:

After 1790, there was a rise of highly productive agricultural regions in the United States, which counted on cheap, handy transport that helped them approach different markets. In this way, farms provided urban populations, foreign countries and little towns with their products. These little towns supplied farmers with good and services, and this is how nonfarm labor began to increase, eventually leading to industrialization in the U.S.

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